All Purpose: truly “Made in France”
Selection of fabric, definition of shape, optimised triangulation based on class rules and/or rig, manufacture, finishing, testing and adjustment are all essential steps to producing successful sails
Listen to the customer: sails designed in close collaboration with the end-user
The first essential step in designing a sail is to listen to the customer, share experience, and gain a thorough understanding of requirements. We are deeply committed to designing sails in close collaboration with our customers
Which fabric for which programme?
An in-depth analysis of goals and constraints, as well as the particular characteristics of each boat enables All Purpose to select the right materials. A mainsail can be composed of several different fabrics and numerous fibres.
There are three kinds of fabrics :
- unidirectional fibres
- multiaxial fibres such as Trilam®
• Polyester, Pentex : mainly used in cruising sails or racing sails where the type of fabric is restricted by the class rules.
• Kevlar and Twaron (aramids), coated for UV protection. Often combined with fibres that are less sensitive to UV such as Dyneema or Black Technora.
• Black Technora (aramid) coated for UV protection
• Dyneema / Spectra (high modulus polyethylenes). Good resistance to UV and flex, very strong and durable, tear-resistant. Creep sensitive (stretch under long-term load).
• Vectran. Liquid crystal polymer from the polyester family. Flex-resistant.
• Carbon. Very low flex resistance, therefore not particularly adapted to sailcloth.
|Fiber||Initial modulus grams denier||Flex loss (%)||UV resistance||Elongation at break|
|Polyester||100||No effect||6 months||8%|
|Pentex||260||No effect||6 months||6%|
|Black technora||540||7%||3-4 months||4,2%|
|Kevlar||49 895||25%||2-3 months||1,5%|
|Dynema||1050||No effect||6-7 months||3,5%|
|Spectra||1250||No effect||6-7 months||5%|
All Purpose can visit your boat to take measurements.
Download measurements sheets as follow :
Sail design software
The design office dedicates a great deal of time to the design of sails with the help of specialist software tools:
The latest technology combined with craftsmanship
All Purpose combines the latest technology with true craftsmanship, working with traditional manufacturing methods to provide the greatest customisation and quality possible.